ASK Single Conversion Receiver (TDA5200)

The IC is a very low power consumption single chip ASK Single Conversion Receiver for the frequency bands 868-870 MHz and 433-435 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a low noise amplifier (LNA), a double balanced mixer, a fully integrated VCO, a PLL synthesiser, a crystal oscillator, a limiter with RSSI generator, a data filter, a data comparator (slicer) and a peak detector. Additionally there is a power down feature to save battery life.

Features:

• Low supply current (Is = 4.8mA typ. at 868MHz, Is = 4.6mA typ. at 434MHz)
• Supply voltage range 5V ±10%
• Power down mode with very low supply current (50nA typ)
• Fully integrated VCO and PLL Synthesiser
• RF input sensitivity < –107dBm
• Selectable frequency ranges 868-870 MHz and 433-435 MHz
• Limiter with RSSI generation, operating at 10.7MHz
• Selectable reference frequency
• 2nd order low pass data filter with external capacitors
• Data slicer with self-adjusting threshold